#!/bin/sh 

str="yangmengya"

arry=(1 2 3 4 5 6 7 8 9)

echo "My name is ${str}"
echo ${#str}
echo ${arry[0]}
echo ${arry[@]}
echo ${arry[*]}


for i in 9 8 7 6 5 4 3 2 1
do
    echo ${i}
done


